CN109542269B - Touch display screen and touch display device - Google Patents
Touch display screen and touch display device Download PDFInfo
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- CN109542269B CN109542269B CN201811385062.3A CN201811385062A CN109542269B CN 109542269 B CN109542269 B CN 109542269B CN 201811385062 A CN201811385062 A CN 201811385062A CN 109542269 B CN109542269 B CN 109542269B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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Abstract
The invention relates to a touch display screen and a touch display device. The touch display screen comprises a cover plate, an adhesive layer attached to the cover plate, a touch sensor, a conducting medium and a substrate; the touch sensor comprises a carrier and a sensing electrode layer arranged on the carrier; the carrier is attached to one side of the bonding layer, which is far away from the cover plate; the conducting medium is formed on one side of the carrier, which is far away from the bonding layer; the substrate is attached to the cover plate to form a sealed packaging cavity, and the bonding layer, the touch sensor and the conducting medium are all located in the packaging cavity; the substrate is provided with a binding region, and the binding region is electrically connected with the sensing electrode layer through a conducting medium. Because the functional layer of the touch sensor is not directly manufactured on the inner surface of the display panel on the substrate or the inner surface of the cover plate, but is arranged on the carrier and is attached to the cover plate through the adhesive layer, the whole structure is simple and easy to bind.
Description
Technical Field
The invention relates to the technical field of display, in particular to a touch display screen and a touch display device.
Background
With the development of touch display screens becoming more and more diversified, the positions of the touch panel relative to the display screen can be classified into an external type, an integrated type and an embedded type, wherein the embedded type touch display screen has the highest integration degree and has a lower packaging thickness.
The touch functional layer of the traditional embedded touch display screen is directly manufactured on the inner surface of the display panel on the substrate or the inner surface of the cover plate, so that the embedded touch display screen has the problem of mutual interference between touch signals and display signals; in addition, the traditional embedded touch display screen has high binding difficulty, so that the production difficulty of the touch display screen is high, the yield is low, and the manufacturing cost of the embedded touch display screen is high.
Disclosure of Invention
Therefore, it is necessary to provide a touch display screen and a touch display device for solving the problems of mutual interference between a touch signal and a display signal and high manufacturing cost of an embedded touch display screen.
A touch display screen, comprising:
a cover plate;
the bonding layer is attached to the cover plate;
the touch sensor comprises a carrier and a sensing electrode layer arranged on the carrier; the carrier is attached to one side of the bonding layer, which is far away from the cover plate;
the conducting medium is formed on one side, away from the bonding layer, of the carrier; and
the substrate is attached to the cover plate to form a sealed packaging cavity, and the bonding layer, the touch sensor and the conducting medium are all located in the packaging cavity; and a binding region is arranged on the substrate and is electrically connected with the sensing electrode layer through the conducting medium.
In one embodiment, the touch sensor further includes an insulating layer disposed on a side of the sensing electrode layer away from the carrier, the insulating layer is disposed on a side of the sensing electrode layer away from the carrier, so that the insulating layer is disposed between the sensing electrode layer and the substrate, and the touch sensor better avoids interference between the touch signal and the display signal through an interference avoiding effect of the insulating layer.
In one embodiment, the conducting medium abuts against the substrate, and the conducting medium is connected with the carrier, so that the conducting medium not only plays a role in conducting electricity, but also plays a role in supporting the carrier.
In one embodiment, the touch display screen further comprises a support body, the support body is located between the carrier and the substrate, and the support body is respectively abutted against the carrier and the substrate to connect the carrier; the support body and the conducting medium support the carrier together, so that the substrate and the cover plate are better attached and packaged.
In one embodiment, the material of the carrier is polyimide or polyethylene terephthalate.
In one embodiment, a first conductive block electrically connected with the sensing electrode layer is arranged on one side of the carrier, which is far away from the bonding layer, and the conducting medium is coated on the first conductive block; and the substrate is also provided with a second conductive block electrically connected with the binding region, and the second conductive block is electrically connected with the conducting medium, so that the binding region is electrically connected with the sensing motor layer through the conducting medium.
In one embodiment, the touch display screen further includes a peripheral wire, the sensing electrode layer is electrically connected to the first conductive block through the peripheral wire, so that the sensing electrode layer and the first conductive block are arranged at an interval, and a distance exists between a projection of the second conductive block on the carrier plate and the sensing electrode layer, so that the sensing electrode layer and the binding region are distributed between the carrier and the substrate in a staggered manner, and the problem of interference between a touch signal and a display signal is better avoided.
In one embodiment, the touch display screen further includes a packaging loop, and the packaging loop is respectively bonded to the substrate and the cover plate, so that the substrate is bonded to the cover plate and the packaging cavity is formed.
In one embodiment, the touch sensor further includes a first bridge layer and a via layer, the first bridge layer is disposed on a side of the carrier facing away from the adhesive layer, the via layer is disposed on a side of the first bridge layer facing away from the carrier, and the via layer is located between the first bridge layer and the sensing electrode layer; the sensing electrode layer comprises a plurality of sensing electrodes, two adjacent sensing electrodes are electrically connected through the first bridge layer, and the sensing electrodes can be arranged at intervals and are electrically connected through the first bridge layer, so that the sensing electrode layer is better distributed on the carrier.
A touch display device comprises the touch display screen in any embodiment.
According to the touch display screen and the touch display device, the carrier is attached to one side, away from the cover plate, of the bonding layer, so that the carrier is fixed on the cover plate through the bonding layer, the sensing electrode layer is arranged on the carrier and used for sensing and testing the touch signal, and the binding area on the substrate is electrically connected with the sensing electrode layer through the conducting medium, so that the sensing electrode layer is prevented from being in direct contact with the substrate, and the problem of mutual interference between the touch signal and the display signal is solved; because the functional layer of the touch sensor is not directly manufactured on the inner surface of the display panel on the substrate or the inner surface of the cover plate, namely the sensing electrode layer is not directly manufactured on the inner surface of the display panel on the substrate or the inner surface of the cover plate, but is arranged on the carrier and is attached to the cover plate through the adhesive layer, the whole structure is simple and easy to bind, the sensing electrode layer is connected with the binding area electrically skillfully, the interference problem of touch signals and display signals is avoided, and the yield of the touch display screen is easy to ensure.
Drawings
FIG. 1 is a schematic diagram of a touch display screen according to an embodiment;
FIG. 2 is a schematic diagram illustrating connection of touch sensors of the touch display screen shown in FIG. 1;
FIG. 3 is a partial schematic view of another perspective of a touch sensor of the touch display screen of FIG. 2;
FIG. 4 is a schematic diagram illustrating connection of touch sensors of a touch display screen according to another embodiment;
fig. 5 is a partial schematic view of another view angle of the touch sensor of the touch display screen shown in fig. 4.
Detailed Description
In order to facilitate understanding of the present invention, the touch display screen and the touch display device will be more fully described with reference to the related drawings. Preferred embodiments of a touch display screen and a touch display device are given in the figures. However, the touch display screen and the touch display device may be implemented in many different forms and are not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the substance of touch-sensitive display screens and touch-sensitive display devices.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the touch display screen and the touch display device is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
One embodiment is a touch display screen, which comprises a cover plate, an adhesive layer attached to the cover plate, a touch sensor, a conducting medium and a substrate; the touch sensor comprises a carrier and a sensing electrode layer arranged on the carrier; the carrier is attached to one side of the bonding layer, which is far away from the cover plate; the conducting medium is formed on one side of the carrier, which is far away from the bonding layer; the substrate is attached to the cover plate to form a sealed packaging cavity, and the bonding layer, the touch sensor and the conducting medium are all located in the packaging cavity; and a binding region is arranged on the substrate and is electrically connected with the sensing electrode layer through the conducting medium.
As shown in fig. 1, a touch display screen 10 of an embodiment includes a cover plate 100, an adhesive layer 200, a touch sensor 300, a conductive medium 400, and a substrate 500. The touch sensor is adhered to the cover plate through the adhesive layer. The conducting medium is coated on the touch sensor and is positioned between the touch sensor and the substrate.
As shown in fig. 1, in one embodiment, an adhesive layer 200 is attached to the cover plate 100. Referring to fig. 2, the touch sensor 300 includes a carrier 310 and a sensing electrode layer 320 disposed on the carrier. The carrier is attached to one side, away from the cover plate, of the bonding layer, so that the carrier is bonded to the cover plate, and the touch sensor is bonded to the cover plate through the bonding layer. In one embodiment, the carrier is a thin film, so that the thickness of the carrier is small and the cost is low. Further, the carrier is made of Polyimide (PI), polyethylene terephthalate (PET), or the like, which makes the carrier low in cost and easy to be thinned.
As shown in fig. 2, in one embodiment, the conducting medium 400 is formed on a side of the carrier 310 facing away from the adhesive layer 200. In this embodiment, the conductive medium 400 is coated on a side of the substrate 310 away from the adhesive layer 200. Referring to fig. 1, the substrate 500 is attached to the cover plate 100 to form a sealed package chamber 10 a. The adhesive layer, the touch sensor and the conducting medium are all located in the packaging cavity. The substrate is provided with a bonding region (not shown). The binding region is electrically connected with the sensing electrode layer through the conducting medium.
In the embodiment, the touch display screen is an AMOLED (Active Matrix/Organic Light Emitting Diode) display screen. The substrate is an Array substrate, and the Array substrate is provided with a driving circuit and an organic light emitting device connected with the driving circuit. The touch sensor is located within the package cavity. The induction electrode layer and the insulating layer are both positioned below the carrier. It is worth mentioning that the binding region is used for binding the touch chip and the display chip. The sensing electrode layer is electrically connected with the touch chip through a conducting medium.
The carrier is attached to one side, away from the cover plate, of the bonding layer, the carrier is fixed on the cover plate through the bonding layer, the sensing electrode layer is arranged on the carrier and used for sensing and testing the touch signal, the binding area on the substrate is electrically connected with the sensing electrode layer through the conducting medium, the sensing electrode layer is prevented from being in direct contact with the substrate, and the problem of mutual interference between the touch signal and the display signal is solved. Because the functional layer of the touch sensor is not directly manufactured on the inner surface of the display panel on the substrate or the inner surface of the cover plate, namely the sensing electrode layer is not directly manufactured on the inner surface of the display panel on the substrate or the inner surface of the cover plate, but is arranged on the carrier and is attached to the cover plate through the adhesive layer, the whole structure is simple and easy to bind, the sensing electrode layer is connected with the binding area electrically skillfully, the interference problem of touch signals and display signals is avoided, and the yield of the touch display screen is easy to ensure.
In one embodiment, the touch sensor 300 further comprises an insulating layer 330 provided on a side of the sensing electrode layer facing away from the carrier. The insulating layer is arranged on one side, deviating from the carrier, of the sensing electrode layer, the insulating layer is arranged between the sensing electrode layer and the substrate, and the touch sensor better avoids the problem of interference between touch signals and display signals through the interference avoiding effect of the insulating layer.
As shown in fig. 2, in order to make the conducting medium not only conduct electricity but also support the carrier, in one embodiment, the conducting medium 400 abuts on the substrate 500, and the conducting medium is connected to the carrier 310, so that the conducting medium not only conducts electricity but also supports the carrier. In this embodiment, the conductive medium is respectively abutted on the substrate and the carrier. In one embodiment, the number of the conducting mediums is multiple, and each conducting medium abuts against the substrate and supports the carrier, so that the carrier can be better supported. Furthermore, a plurality of conducting mediums are distributed on the carrier at intervals, so that the carrier can be better supported.
As shown in fig. 1 and fig. 2, in order to better attach and encapsulate the substrate and the cover plate, in one embodiment, the touch display screen 10 further includes a support body 600 located between the carrier 310 and the substrate 500. The support body is respectively abutted against the carrier and the substrate to connect the carrier. The support body and the conducting medium support the carrier together, so that the distance between the substrate and the cover plate is more uniform at each position, and the substrate and the cover plate are better attached and packaged. In this embodiment, the support body functions as an auxiliary support carrier. It is understood that in other embodiments, the support may be omitted when the number of conducting mediums is large. In one embodiment, the periphery of the carrier is coated with the conducting medium, and the requirement of supporting the carrier can be met without additionally arranging a support body. Furthermore, the periphery of the carrier is uniformly coated with a conducting medium, so that the carrier and the substrate are arranged in parallel.
As shown in fig. 1, in order to simplify the structure of the support body and the conducting medium, in one embodiment, the cross section of the support body 600 and the cross section of the conducting medium 400 are both circular, so that the structure of the support body and the conducting medium is simplified. In one embodiment, the diameter of the support is equal to the diameter of the conducting medium, so that the support and the conducting medium are arranged at the same height, and the carrier and the substrate are ensured to be arranged in parallel. In other embodiments, the cross section of the support body and the cross section of the conducting medium may also be square or oval or other shapes.
As shown in fig. 3, in one embodiment, a first conductive block 312 electrically connected to the sensing electrode layer 320 is disposed on a side of the carrier 310 away from the adhesive layer 200, and the conducting medium 400 is coated on the first conductive block to electrically connect the conducting medium and the first conductive block. And the substrate is also provided with a second conductive block electrically connected with the binding region, and the second conductive block is electrically connected with the conducting medium, so that the binding region is electrically connected with the sensing motor layer through the conducting medium. In this embodiment, the first and second conductive bumps are both turned on the PAD. The number of the first conductive blocks and the number of the second conductive blocks are multiple, and the multiple first conductive blocks correspond to the multiple second conductive blocks one to one. The number of the conducting mediums is multiple, and each conducting medium is coated on a first conducting block and is electrically connected with a corresponding second conducting block.
As shown in fig. 3, in one embodiment, the touch display screen 10 further includes a peripheral wire 700, the sensing electrode layer 320 is electrically connected to the first conductive block 312 through the peripheral wire, so that the sensing electrode layer and the first conductive block are disposed at an interval, and a distance exists between a projection of the second conductive block on the carrier board and the sensing electrode layer, so that the sensing electrode layer and the binding region are distributed between the carrier and the substrate in a staggered manner, and a problem of interference between the touch signal and the display signal is better avoided. In this embodiment, the peripheral wires are peripheral wires, the length of the peripheral wires can be flexibly set according to the distance between the sensing electrode layer and the first conductive block, and the wire routing path can be bent at will. As shown in fig. 3, in one embodiment, the routing path of the peripheral wires 700 has a right-angled bend and/or an arc-shaped bend, so that the routing of the peripheral wires is simple and has better applicability.
In one embodiment, the touch display screen further comprises a lead, and the second conductive block is electrically connected with the binding region through the lead, so that the second conductive block can be separated from the binding region without being arranged adjacently, and the problem of interference between a touch signal and a display signal can be better avoided. In this embodiment, the second conductive bumps correspond to the first conductive bumps, and the second conductive bumps are bonded by bonding regions on the lead guide substrate. Specifically, the sensing electrode layer is connected to a first conductive block through a peripheral wire, and is connected to a corresponding second conductive block on the substrate by coating a conductive medium on the first conductive block. The carrier is rectangular. It can be understood that the number of the first conductive blocks and the number of the conductive media are both multiple, and the multiple first conductive blocks can be distributed on one side of the carrier, and the other sides of the carrier are supported by the supporting body, so that the uneven stress of the substrate and the cover plate after being pressed is avoided. Of course, the first conductive blocks can be uniformly distributed around the carrier, and the support of the support body can be omitted.
As shown in FIG. 4, in one embodiment, the touch sensor 300 further includes a first bridge layer 340 and a via layer 350. Referring also to fig. 1, the first bridge layer is disposed on a side of the carrier facing away from the adhesive layer 200. The via layer is disposed on a side of the first bridge layer facing away from the carrier 310, and the via layer is located between the first bridge layer and the sensing electrode layer. As shown in fig. 5, the sensing electrode layer 320 includes a plurality of sensing electrodes 322, and two adjacent sensing electrodes are electrically connected through the first bridge layer. The plurality of sensing electrodes can be arranged at intervals and electrically connected through the first bridge layer, so that the sensing electrode layers are better distributed on the carrier. As shown in fig. 5, in the present embodiment, the touch sensor 300 may form a bridge structure pattern. In other embodiments, as shown in fig. 3, the first bridge layer and the via layer can be omitted, and the touch sensor 300 can form a single-layer multi-point structure pattern.
In one embodiment, the number of the second conductive blocks, the leads, the conductive medium, the first conductive blocks and the peripheral wires is M + N. Each conducting medium is coated on the corresponding first conductive block. Each second conductive block corresponds to one first conductive block, and each second conductive block is electrically connected with the first conductive block through a corresponding conducting medium. Each second conductive block is led to the binding area through a corresponding lead wire for binding. Each first conductive block is electrically connected with the sensing electrode layer through a corresponding peripheral lead.
As shown in FIG. 5, in one embodiment, the plurality of sensing electrodes 322 includes a plurality of first sensing electrodes 323 and a plurality of second sensing electrodes 324. The plurality of first sensing electrodes are arranged in M rows. The plurality of second sensing electrodes are arranged in N rows. The adjacent first sensing electrodes positioned in the same row are electrically connected through the via hole layer. The adjacent second sensing electrodes positioned in the same row are electrically connected through the via layer. Specifically, the via hole layer is provided with a plurality of via holes, the adjacent first sensing electrodes in the same row are electrically connected through the via holes of the via hole layer, the adjacent second sensing electrodes in the same row are electrically connected through the via holes of the via hole layer, and the M rows of first sensing electrodes are electrically connected with the corresponding first conductive blocks through peripheral wires. The N rows of second sensing electrodes are electrically connected with the corresponding first conductive blocks through peripheral wires. The sensing electrodes are uniformly distributed on the carrier, so that the sensing electrode layers are better distributed on the carrier. Furthermore, M rows of the first sensing electrodes 323 are disposed in parallel, N rows of the second sensing electrodes 324 are disposed in parallel, and the arrangement direction of each row of the first sensing electrodes is perpendicular to the arrangement direction of any row of the second sensing electrodes, so that the M rows of the first sensing electrodes and the N rows of the second sensing electrodes are better distributed on the carrier. In one embodiment, each row of the first sensing electrodes is arranged along a transverse direction of the carrier, and each row of the second sensing electrodes is arranged along a longitudinal direction of the carrier.
Referring again to fig. 1, in one embodiment, the touch display screen 10 further includes a packaging loop 800, and the packaging loop is respectively bonded to the substrate 500 and the cover plate 100, so that the substrate is attached to the cover plate and forms the packaging cavity. In this embodiment, the material of the encapsulation loop is frit (frit). And sintering and curing the packaging loop on the substrate and the cover plate to firmly bond the packaging loop with the substrate and the cover plate respectively. In one embodiment, the thickness of the packaging loop is equal to the sum of the thickness of the touch sensor, the thickness of the adhesive layer and the thickness of the conducting medium, so that the substrate and the cover plate are attached to the packaging in parallel.
The touch display screen has the following characteristics:
1) the touch sensor is adhered to the cover plate through the carrier film, and the structure and the pattern types of the touch sensor are various and are not limited to the bridging structure pattern and the single-layer multi-point structure pattern. The touch sensor can be made very thin, and the sum of the thicknesses of the touch sensor, the bonding layer and the conducting medium is equal to the thickness of the packaging loop.
2) The conduction principle of the touch display screen is that a sensing electrode layer of a touch sensor is manufactured on a film, the sensing electrode layer is connected to a first conductive block through peripheral wiring, the sensing electrode layer is electrically connected with a corresponding second conductive block on a substrate through a conduction medium coated on the first conductive block, and the second conductive block is led to a binding area of the substrate through a lead to be bound. The first conductive blocks can be arranged on one side of the carrier, and can also be uniformly distributed around the carrier, and are specifically adjusted according to the layout space on the carrier.
3) Since the film cannot be sintered at high temperatures as in the packaging loop, the sintering temperature of the packaging loop is approximately 350 ℃ to 550 ℃, and the high temperature can damage the film. Therefore, the step of adhering the film to the cover plate by means of the adhesive layer needs to be performed after the sintering step of the encapsulation loop. And attaching the film to the inner surface of the cover plate glass, and finally packaging the cover plate and the substrate.
4) The insulating layer is arranged on one side, close to the substrate, of the touch sensor, the parasitic capacitance between the touch control element and the light emitting element can be reduced, shielding performance of touch control signals and display signals is improved, and then the signal to noise ratio of the touch control display screen is improved.
5) The manufacturing limitation of the touch display screen is smaller than that of the traditional touch display screen, and because the traditional touch display screen directly makes the touch function layer on the inner surface of the substrate or the cover plate glass, the manufacturing mode needs to be completed on a specific AMOLED production line, so that the cost is higher and the manufacturing difficulty is larger.
The touch control function of the touch control display screen is firstly manufactured on the film, then the film is attached to the inner surface of the cover plate glass, and then the cover plate glass is packaged with the substrate plate. The touch display screen designs the conducting medium on the first conductive block on the touch function layer through various methods such as coating, film coating, exposure development, spraying and the like, and then the conducting medium is conducted to the corresponding second conductive block on the substrate to be electrically connected, and the second conductive block is led to the binding area on the substrate by a lead to be bound. The number of the first conductive blocks and the number of the second conductive blocks are multiple, the multiple first conductive blocks can be designed on one side of the carrier or distributed uniformly, and the number is specifically adjusted according to the layout space of the carrier. The touch sensor has various structures and types of patterns, and is not limited to a bridge structure pattern and a single-layer multi-point structure pattern. It should be noted that the shape of the film may be square or circular or other shapes. The insulating layer is arranged on one side, close to the substrate, of the touch sensor, the parasitic capacitance between the touch control element and the light emitting element can be reduced, shielding performance of touch control signals and display signals is improved, and then the signal to noise ratio of the touch control display screen is improved.
The invention further provides a touch display device which comprises the touch display screen in any embodiment.
In the touch display device, the carrier is attached to the side, away from the cover plate, of the bonding layer, so that the carrier is fixed on the cover plate through the bonding layer, the sensing electrode layer is arranged on the carrier and used for sensing and testing the touch signal, and the binding region on the substrate is electrically connected with the sensing electrode layer through the conducting medium, so that the direct contact between the sensing electrode layer and the substrate is avoided, and the problem of mutual interference between the touch signal and the display signal is solved; because the functional layer of the touch sensor is not directly manufactured on the inner surface of the display panel on the substrate or the inner surface of the cover plate, namely the sensing electrode layer is not directly manufactured on the inner surface of the display panel on the substrate or the inner surface of the cover plate, but is arranged on the carrier and is attached to the cover plate through the adhesive layer, the whole structure is simple and easy to bind, the sensing electrode layer is connected with the binding area electrically skillfully, the interference problem of touch signals and display signals is avoided, and the yield of the touch display screen is easy to ensure.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A touch display screen, comprising:
a cover plate;
the bonding layer is attached to the cover plate;
the touch sensor comprises a carrier and a sensing electrode layer arranged on the carrier; the carrier is attached to one side of the bonding layer, which is far away from the cover plate;
the conducting mediums are formed on one side, away from the bonding layer, of the carrier, the number of the conducting mediums is multiple, and the conducting mediums are distributed on the carrier at intervals so as to support the carrier; and
the substrate is attached to the cover plate to form a sealed packaging cavity, and the bonding layer, the touch sensor and the conducting medium are all located in the packaging cavity; and a binding region is arranged on the substrate and is electrically connected with the sensing electrode layer through the conducting medium.
2. The touch display screen of claim 1, wherein the touch sensor further comprises an insulating layer disposed on a side of the sensing electrode layer facing away from the carrier.
3. The touch display screen of claim 1, wherein the conducting medium abuts against the substrate, and the conducting medium is connected to the carrier.
4. The touch display screen of claim 3, further comprising a support body, wherein the support body is located between the carrier and the substrate, and the support body is abutted against the carrier and the substrate respectively to connect the carrier.
5. The touch display screen of claim 1, wherein the carrier is made of polyimide or polyethylene terephthalate.
6. The touch display screen of any one of claims 1 to 5, wherein a first conductive block electrically connected to the sensing electrode layer is disposed on a side of the carrier away from the adhesive layer, and the conductive medium is coated on the first conductive block; and the substrate is also provided with a second conductive block electrically connected with the binding region, and the second conductive block is electrically connected with the conducting medium.
7. The touch display screen of claim 6, further comprising a peripheral wire, wherein the sensing electrode layer is electrically connected to the first conductive block through the peripheral wire.
8. The touch display screen of any one of claims 1 to 5, further comprising a packaging loop, wherein the packaging loop is adhered to the substrate and the cover plate, respectively, so that the substrate is adhered to the cover plate and forms the packaging cavity.
9. The touch display screen of any one of claims 1 to 5, wherein the touch sensor further comprises a first bridge layer and a via layer, the first bridge layer is disposed on a side of the carrier facing away from the adhesive layer, the via layer is disposed on a side of the first bridge layer facing away from the carrier, and the via layer is located between the first bridge layer and the sensing electrode layer; the sensing electrode layer comprises a plurality of sensing electrodes, and two adjacent sensing electrodes are electrically connected through the first bridge layer.
10. A touch display device comprising the touch display screen of any one of claims 1 to 9.
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| CN201811385062.3A CN109542269B (en) | 2018-11-20 | 2018-11-20 | Touch display screen and touch display device |
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| CN201811385062.3A CN109542269B (en) | 2018-11-20 | 2018-11-20 | Touch display screen and touch display device |
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| CN109542269B true CN109542269B (en) | 2022-05-03 |
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| CN110262694B (en) * | 2019-06-24 | 2023-03-07 | 信利（惠州）智能显示有限公司 | Touch display module and touch display screen |
| CN113900546B (en) * | 2021-11-04 | 2024-04-16 | 信利（惠州）智能显示有限公司 | Touch panel and touch display screen |
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